I read about a young man, Terry Lobell, who was an unemployed mechanic in the United States. He heard people complaining that advertising was expensive. Then he started thinking; if people are saying advertising is expensive, then it is a problem and therefore a need. So he decided to give people advertising at a cheaper rate. What he did was to mail coupons including the message the company or manufacturer wanted to pass across to the customers. And that was a lot cheaper than advertising in the paper and magazine. His business exploded to the point where he was mailing fifty million pieces of advert per day. He became a multi-millionaire by solving a problem and making life easier for people. There was also a young man who sent for a transcript of a TV programme and it took months before he could get it. Then it occurred to him that as popular as the TV programme was, there would be many people who wanted the transcript. But if it would take them months to get it, then it...